We demonstrate a prototype of a laser-cooled 87Rb fountain clock. We report a preliminary measurement of the frequency shift due to cold collisions and find the shift to be at least a factor of ten less than that in a laser-cooled Cs clock. We also demonstrate the use of the ac Zeeman shift to measure the response of a microwave cavity. Finally, we have demonstrated a juggling atomic fountain and discuss the application of this technique to fountain and microgravity atomic clocks.
|Original language||English (US)|
|Number of pages||4|
|Journal||IEEE Transactions on Instrumentation and Measurement|
|State||Published - 1999|
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering